17 November 2003 Excitation mechanisms in He+-He collisions
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Proceedings Volume 5258, IV Workshop on Atomic and Molecular Physics; (2003) https://doi.org/10.1117/12.544322
Event: IV Workshop on Atomic and Molecular Physics, 2002, Jurata, Poland
Single-electron excitation of He atoms by 30 and 50 keV He+ impact was investigated using anticrossing spectroscopy. The measured anticrossing spectra give evidence for the assumption that in the intermediate energy range, where the excitation cross-sections have resonance-like maxima, excitation proceeds via Paul-trap promotion. The electron to be excited gains energy by transiently riding during the collison on the saddle of the two-center potential of the (He+)2 molecular core.
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Gebhard von Oppen, Gebhard von Oppen, Marco Busch, Marco Busch, Thorsten Ludwig, Thorsten Ludwig, Ryszard Drozdowski, Ryszard Drozdowski, "Excitation mechanisms in He+-He collisions", Proc. SPIE 5258, IV Workshop on Atomic and Molecular Physics, (17 November 2003); doi: 10.1117/12.544322; https://doi.org/10.1117/12.544322

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